I would like to share on the resolution of my problem on my '91 :
- intermitent hesitation, bogging / delay when accelerating slightly (less than half throttle) at low rpm (under 4 krpm)
- no cel
- no problem under hard acceleration (more than half throttle)
- problem disapeared when disconnecting the O2 sensors (cel on and "default" mode)
Problem solved by replacing the O2 sensors.
- intermitent hesitation, bogging / delay when accelerating slightly (less than half throttle) at low rpm (under 4 krpm)
- no cel
- no problem under hard acceleration (more than half throttle)
- problem disapeared when disconnecting the O2 sensors (cel on and "default" mode)
Problem solved by replacing the O2 sensors.
